CocoaPods常见问题

$ pod init

――― MARKDOWN TEMPLATE ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――### Command

/usr/local/bin/pod init

### Report* What did you do?* What did you expect to happen?* What happened instead?### Stack

CocoaPods : 1.0.0
Ruby : ruby 2.0.0p648 (2015-12-16 revision 53162) [universal.x86_64-darwin16]
RubyGems : 2.6.7
Host : Mac OS X 10.12.6 (16G29)
Xcode : 8.3.3 (8E3004b)
Git : git version 2.11.0 (Apple Git-81)
Ruby lib dir : /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib
Repositories : master - https://github.com/CocoaPods/Specs.git @ 83dba8a6d4e6a0b446f984852508ea0983157e6d

### Plugins

cocoapods-deintegrate : 1.0.1
cocoapods-plugins : 1.0.0
cocoapods-search : 1.0.0
cocoapods-stats : 1.0.0
cocoapods-trunk : 1.0.0
cocoapods-try : 1.1.0

### Error

RuntimeError - [Xcodeproj] Unknown object version.
/Library/Ruby/Gems/2.0.0/gems/xcodeproj-1.0.0/lib/xcodeproj/project.rb:217:in initialize_from_file'
/Library/Ruby/Gems/2.0.0/gems/xcodeproj-1.0.0/lib/xcodeproj/project.rb:102:inopen’
/Library/Ruby/Gems/2.0.0/gems/cocoapods-1.0.0/lib/cocoapods/command/init.rb:41:in validate!'
/Library/Ruby/Gems/2.0.0/gems/claide-1.0.0/lib/claide/command.rb:333:inrun’
/Library/Ruby/Gems/2.0.0/gems/cocoapods-1.0.0/lib/cocoapods/command.rb:50:in run'
/Library/Ruby/Gems/2.0.0/gems/cocoapods-1.0.0/bin/pod:55:in

――― TEMPLATE END ――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――[!] Oh no, an error occurred.Search for existing GitHub issues similar to yours:https://github.com/CocoaPods/CocoaPods/search?q=%5BXcodeproj%5D+Unknown+object+version.&type=IssuesIf none exists, create a ticket, with the template displayed above, on:https://github.com/CocoaPods/CocoaPods/issues/newBe sure to first read the contributing guide for details on how to properly submit a ticket:https://github.com/CocoaPods/CocoaPods/blob/master/CONTRIBUTING.mdDon't forget to anonymize any private data!

如图：
原因：
上面错误提示：RuntimeError - [Xcodeproj] Unknown object version.
说明 CocoaPods 不识别 XCode 该版本。
最新的 Xcode9.1.beta2 和 CocoaPods 不兼容。。换成xcode8.3.3x解决